<html xmlns="http://www.w3.org/1999/xhtml" >
<head>
    <meta charset="utf-8">
    <title>标题页</title>
</head>
<body>
<style type="text/css">
    #divLoadCont{position:absolute; z-index:500; left:0; top:0; width:100%; height:98%; clip:rect(0,100%,100%,0); background-color:white; layer-background-color:white; }
    #divLoad1{position:absolute; layer-background-color:silver; background-color:silver}
    #divLoad2{position:absolute; left:0; top:0; layer-background-color:navy; background-color:navy}
    #divLoadText{position:absolute; background-color:transparent; font-family:arial,helvetica; color:Navy; font-size:14px; }
</style>
<script language="JavaScript" type="text/javascript">
    function pro_bwcheck(){                     //检测浏览器的代码-通用
        this.ver=navigator.appVersion
        this.agent=navigator.userAgent
        this.dom=document.getElementById?1:0
        this.opera5=this.agent.indexOf("Opera 5")>-1
        this.ie5=(this.ver.indexOf("MSIE 5")>-1 && this.dom && !this.opera5)?1:0;
        this.ie6=(this.ver.indexOf("MSIE 6")>-1 && this.dom && !this.opera5)?1:0;
        this.ie4=(document.all && !this.dom && !this.opera5)?1:0;
        this.ie=this.ie4||this.ie5||this.ie6
        this.mac=this.agent.indexOf("Mac")>-1
        this.ns6=(this.dom && parseInt(this.ver) >= 5) ?1:0;
        this.ns4=(document.layers && !this.dom)?1:0;
        this.bw=(this.ie7 || this.ie6 || this.ie5 || this.ie4 || this.ns4 || this.ns6 || this.opera5)
        return this
    }
    var bw=new pro_bwcheck()
    numImages=12                       //默认10个图片
    loaderWidth=350                    //设置进度条的宽度
    currentImg=0
    function pro_doc_size(){           //判断显示区域
        this.x=0;this.x2=bw.ie && document.body.offsetWidth-20||innerWidth||0;
        this.y=0;this.y2=bw.ie && document.body.offsetHeight-5||innerHeight||0;
        if(!this.x2||!this.y2) return message('窗体的宽度和高度不够！')
        this.x50=this.x2/2;this.y50=this.y2/2;
        return this;
    }
    function pro_obj(obj,nest){            //定义页面中承载进度条的控件属性
        nest=(!nest) ? "":'document.'+nest+'.'
        this.evnt=bw.dom? document.getElementById(obj):bw.ie4?document.all[obj]:bw.ns4?eval(nest+"document.layers." +obj):0;
        this.css=bw.dom||bw.ie4?this.evnt.style:this.evnt;
        this.ref=this.css
        this.w=this.evnt.offsetWidth||this.css.clip.width||
                this.ref.width||this.css.pixelWidth||0;
        return this
    }
    pro_obj.prototype.moveIt = function(x,y){              //定义移动方法
        this.x=x;this.y=y; this.css.left=x;this.css.top=y
    }
    pro_obj.prototype.clipTo = function(t,r,b,l,setwidth){ //重新定义裁剪方法
        this.ct=t; this.cr=r; this.cb=b; this.cl=l
        if(bw.ns4){
            this.css.clip.top=t;this.css.clip.right=r
            this.css.clip.bottom=b;this.css.clip.left=l
        }else{
            if(t<0)t=0;if(r<0)r=0;if(b<0)b=0;if(b<0)b=0
            this.css.clip="rect("+t+","+r+","+b+","+l+")";
            if(setwidth){this.css.pixelWidth=this.css.width=r;
                this.css.pixelHeight=this.css.height=b}
        }
    }
    var oLoad2
    function startLoading(){
        page=new pro_doc_size()
//以下设置加载控件的一些基本属性
        oLoadCont=new pro_obj('divLoadCont')
        oLoad=new pro_obj('divLoad1','divLoadCont')
        oLoad2=new pro_obj('divLoad2','divLoadCont.document.divLoad1')
        oLoadText=new pro_obj('divLoadText','divLoadCont.document.divLoad1')
        oLoad.moveIt(page.x50-loaderWidth/2,page.y50-20)
        oLoadText.moveIt(loaderWidth/2 - oLoadText.w/2,10)
        oLoad.clipTo(0,loaderWidth,40,0,1)   //裁剪区域
        oLoad2.per = loaderWidth/numImages   //百分比
    }
    function loadIt_display(ok){
        currentImg++
        if(oLoad2) oLoad2.clipTo(0,oLoad2.per*currentImg,40,0,1)       //裁剪显示的区域
        if(currentImg<=numImages) setTimeout("loadIt_display(1)",200)  //使用定时器不断加载图片
        else{
            oLoadCont.css.visibility='hidden'                            //进度条加载完成后隐藏
        }
    }
</script>
<div id="divLoadCont">
    <div id="divLoad1">
        <div id="divLoad2"></div><br>
        <div id="divLoadText">页面加载中，请稍候...</div>
    </div>
</div>
<script>
    startLoading()
    loadIt_display(1)
</script>
</body>
</html>